139859371 has 8 divisors (see below), whose sum is σ = 144596384. Its totient is φ = 135172800.

The previous prime is 139859359. The next prime is 139859393. The reversal of 139859371 is 173958931.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 139859371 - 2⁵ = 139859339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139859471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6930 + ... + 18103.

It is an arithmetic number, because the mean of its divisors is an integer number (18074548).

Almost surely, 2^139859371 is an apocalyptic number.

139859371 is a deficient number, since it is larger than the sum of its proper divisors (4737013).

139859371 is a wasteful number, since it uses less digits than its factorization.

139859371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25221.

The product of its digits is 204120, while the sum is 46.

The square root of 139859371 is about 11826.2154132250. The cubic root of 139859371 is about 519.0754911641.

The spelling of 139859371 in words is "one hundred thirty-nine million, eight hundred fifty-nine thousand, three hundred seventy-one".